For the given value of the mass and radius of the planet, we varied the core pressure in the model to investigate the degeneracy in the composition of the planet up to a maximum supported core pressure of 3346 GPa. This maximum core pressure proposes a dense iron core (Fe : 96.3 %) immersed in deep ocean mantle (H\(_2\) O : 12.6 %) with a compromised silicate layer(MgSiO\(_3\)  : 3.2 %). Also, the lower value of planet mass (M-1\(\sigma \) ) suggests a composition that can be up to 78.6 % Fe, 6.2% MgSiO\(_3\)  and 15.1% H\(_2\) O. However, none of the above compositions seem to be feasible, considering the high equilibrium temperature (1756 K) of CoRoT-7b estimated assuming a zero albedo [1]}. Therefore, the most plausible composition occurs to be the one discussed earlier in this section, shown in Figure REF  with little or no surface layer of water. It should be borne in mind that the manipulateplanet tool assumes a condensed volatile layer typical of a cold planet. More recent studies, [2]} show that a substantial water layer would establish a deep steam atmosphere in a planet as strongly-irradiated as CoRoT-7b, increasing the radius well beyond the observed value.
